1. = (x^2-3x+2)(x+4)
2. = (x-3)/(x+4)
3. = x^2/root (x-4)
4. Pick your own function (suggestion: a polynomial of degree two or three, a square root of a linear function, a problem from your textbook, etc...)
5. = (x/2)^x
(Domain: > 0
)
6. = sin^2 x-2 cos^2 x
. Hint: Maybe show first that the function can be converted to a linear expression with os (2x)
. You may use these two formulas: in^2 x = [1-cos 2 x]/2
and os^2 x = [1+cos 2x]/2
.